I like chess problems, especially retrograde analysis. I posted my problems here.
Alice Chess Problem
http://www.schemingmind.com/forumtopic.aspx?topic_id=82515Alice Chess Problem #2(Problem Paradise 2004-05 3rd Honourable Mention)
http://www.schemingmind.com/forumtopic.aspx?topic_id=82838Alice Chess Problem 3
http://www.schemingmind.com/forumtopic.aspx?topic_id=96925I participated in International Solving Contests.
5th ISC (2009)...6th place out of 141 solvers in 2nd category(for beginners)
6th ISC (2010)...174 / 198 in 1st category (for experienced solvers)
7th ISC (2011)...129 / 211 in 1st category
8th ISC (2012)...161-165 / 220 in 1st category
9th ISC (2013)...100-102 / 208 in 1st category
My rating on WFCC (World Federation for Chess Composition)
1721(April 1st 2013)
I also play Shogi (Japanese chess) and Go. I'm interested in Tsume-shogi (shogi problems).
Shogi (Japanese Chess) with text-based diagrams
http://www.schemingmind.com/forumtopic.aspx?topic_id=88551松崎 直樹
MATSUZAKI, Naoki